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MARYLAND · MAIL-IN SERVICE

Mercedes W164/X164/W251 EIS Repair in Maryland

Ship your module from Baltimore or anywhere in Maryland — we complete the work in 24 hours and ship it back at the return speed you choose at checkout — standard to overnight.

$399 flat 24-Hour Turnaround ~3 day USPS from MD
Text Before You Buy

Why Maryland customers mail in mercedes w164/x164/w251 eis repair

Maryland has roughly 4.2 million registered vehicles, and trucks, SUVs & imports make up much of what Baltimore-area shops and owners mail us. European platforms cluster in Baltimore, Columbia, Germantown, and most local Baltimore shops sub bench jobs like mercedes w164/x164/w251 eis repair to a specialist instead of tooling up for one car. Cross-country northeast — about 3 days each way.

Metros we serve in Maryland

BaltimoreColumbiaGermantownSilver Spring

Maryland at a glance

  • ~4.2M registered vehicles statewide
  • Most common: trucks, SUVs & imports
  • Maryland requires a safety inspection at point of sale or transfer, plus a biennial VEIP emissions test in most counties.

What you get

  • Component-level repair of the failed EIS (no donor required)
  • Original VIN binding + key pairing preserved
  • Full bench-test with your supplied working key
  • No additional ECU or ESL re-programming needed after install
  • 24-hour bench turnaround
  • Return shipping your choice at checkout — standard, 2-day, or overnight
  • Photo of completed bench-test before shipping back

Shipping timeline — Maryland ↔ Arlington TX

USPS Priority routes northeast through the Mid-Atlantic network; about 3 days. Typical round-trip from Baltimore or anywhere in Maryland:

  1. Day 0

    You ship

    USPS Priority from MD, ~$12

  2. Day 3

    We receive

    Workshop opens + inspects

  3. Day 4

    Work done

    24-hour bench turnaround

  4. ~Day 7

    Back to you

    Return speed you chose at checkout

Maryland FAQ

Common questions from customers shipping from Maryland.

How long does shipping take from Maryland to your Arlington TX workshop?
USPS Priority Mail from Baltimore, MD reaches our Arlington workshop in about 3 business days. USPS Priority routes northeast through the Mid-Atlantic network; about 3 days. We start work the same day your module arrives and ship back next business day at the return speed you chose at checkout.
How much does it cost to ship a module from Maryland?
USPS Priority flat-rate from Maryland to Arlington TX runs about $12. The customer pays shipping to us; return shipping back to Maryland is selected at checkout — $14.95 standard (3-5 business days), $29.95 UPS 2-Day, or $74.95 UPS Next Day Air, flat nationwide. Cross-country northeast — about 3 days each way.
Do you accept mercedes w164/x164/w251 eis repair modules from Maryland?
Yes — we receive modules from Baltimore, Columbia, Germantown, Silver Spring and the rest of Maryland regularly. With about 4.2 million registered vehicles statewide, trucks, SUVs & imports are the bulk of what we see from Maryland.
Is there a mercedes w164/x164/w251 eis repair shop in Baltimore I should use instead?
Most Baltimore shops don't keep the bench equipment for mercedes w164/x164/w251 eis repair — they'd forward the module to a specialist anyway, which adds a markup and a middleman. Going direct to us is usually faster and cheaper. Cross-country northeast — about 3 days each way.
Does Maryland vehicle inspection or emissions testing affect this service?
Maryland requires a safety inspection at point of sale or transfer, plus a biennial VEIP emissions test in most counties. Our service is bench module programming only — you remain responsible for your vehicle's compliance with all Maryland and federal requirements.
Will I need to re-pair the ECU or ESL after install?
No. The repair preserves all immobilizer linkages (EIS ↔ ECU ↔ ESL). Reinstall, insert your existing key, start the car.
What if my EIS is from a different chassis (W204, W211, W221)?
Those use different EIS architectures. See our Mercedes EIS Cloning (Pre-2014) service for W204/W211/W212/W221, or text us with your specific year/model.

Full details

See the complete Mercedes W164/X164/W251 EIS Repair service page

Compatibility list, what it fixes / doesn't fix, shipping instructions, warranty.

Full Service Page

Same service from other states:

AlabamaAlaskaArizonaArkansasCaliforniaColoradoConnecticutDelawareFloridaGeorgiaHawaiiIdahoIllinoisIndianaIowaKansasKentuckyLouisianaMaineMassachusetts

Ship from Maryland today

Pay now, get the Arlington TX shipping address by email, drop it in the mail. Full round-trip from Baltimore: about a week.

(817) 678-3252